package com.atguigu.gulimall.product.service.impl;

import com.atguigu.gulimall.product.entity.AttrEntity;
import com.atguigu.gulimall.product.service.AttrService;
import com.atguigu.gulimall.product.vo.AttrGropuWithAttrsVo;
import com.atguigu.gulimall.product.vo.SkuItemVo;
import com.atguigu.gulimall.product.vo.SpuItemAttrGroupVo;
import org.apache.commons.lang.StringUtils;
import org.apache.ibatis.annotations.Param;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.AttrGroupDao;
import com.atguigu.gulimall.product.entity.AttrGroupEntity;
import com.atguigu.gulimall.product.service.AttrGroupService;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {


    @Autowired
    private AttrService attrService;
    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrGroupEntity> page = this.page(
                new Query<AttrGroupEntity>().getPage(params),
                new QueryWrapper<AttrGroupEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public PageUtils queryPage(Map<String, Object> params, Long catelogId) {
     /*   if(catelogId == 0){
          IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),new QueryWrapper<AttrGroupEntity>());
          return new PageUtils(page);
        } else {
           String key = (String) params.get("key");
           QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<AttrGroupEntity>().eq("catelog_id",catelogId);
           if(!StringUtils.isEmpty(key)){
               wrapper.and((obj)->{
                   obj.eq("attr_group_id",key).or().eq("attr_group_name",key);
               });
           }
            IPage<AttrGroupEntity> page = this.page(
                    new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return new PageUtils(page);
        }*/

        String key = (String) params.get("key");
        QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<AttrGroupEntity>();
        if(!StringUtils.isEmpty(key)){
            wrapper.and((obj)->{
                obj.eq("attr_group_id",key).or().eq("attr_group_name",key);
            });
        }
        if(catelogId == 0){
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return new PageUtils(page);
        } else {
            wrapper.eq("catelog_id",catelogId);
            IPage<AttrGroupEntity> page = this.page(
                    new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return new PageUtils(page);
        }
    }

    /**
     * 根据分类ID查出所有分组以及组里面的属性
     * @param catelogId
     * @return
     */
    @Override
    public List<AttrGropuWithAttrsVo> getAttrGroupWithAttrsByCatelogId(Long catelogId) {
        //1、查询分组信息
        List<AttrGroupEntity> attrGroupEntities = this.list(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
        //2、查询所有属性分组
        List<AttrGropuWithAttrsVo> collect = attrGroupEntities.stream().map((group) -> {
            AttrGropuWithAttrsVo attrsVo = new AttrGropuWithAttrsVo();
            BeanUtils.copyProperties(group,attrsVo);
            List<AttrEntity> attrs = attrService.getRelationAttr(attrsVo.getAttrGroupId());
            attrsVo.setAttrs(attrs);
            return attrsVo;
        }).collect(Collectors.toList());
        return collect;
    }



    //通过Spu获取spu的规格参数信息
    @Override
    public List<SpuItemAttrGroupVo> getAttrGroupWithAttrsBySpuId(Long spuId, Long catalogId) {
        AttrGroupDao baseMapper = this.getBaseMapper();
        List<SpuItemAttrGroupVo> vos = baseMapper.getAttrGroupWithAttrsBySpuId(spuId,catalogId);
        return vos;
    }

}